SQL Performance (MOSC)

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SQL Performance Issue

edited May 13, 2016 5:12AM in SQL Performance (MOSC) 2 commentsAnswered

Hi All,

We are using OBIEE as our reporting tool and Oracle db 11g as our data warehouse. Some of the reports started running slow from few months back. I ran the same query in Oracle database and its running for a long time in Oracle DB. So I need to identify the problematic join and take corrective measures. I am a newbie with explain plans and I was trying the analyze the explain plan generated for problematic SQL. Please find attached the explain plan for the sql.

1) From the explain plan I could see the Nested Loop for W_POSTION_D, W_POSITION_DH and W_SRVREQ_F is taking lot of time. Please correct me if I am wrong.

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